Vegas Golden Knights GM George McPhee is among those watching the NHL's conference finals very closely, in order to gather some final insights on the players he could select in the expansion draft on June 21.

The rules of the expansion draft require McPhee to select one player per team, and allow each team to protect up to 10 skaters and a goalie. Based on the current rosters of the four remaining teams in the playoffs, McPhee could be scouting his team's first starting goalie, one of his future top-four defensemen and two of the league's better bottom-six forwards.

Let's take a look at whom McPhee might be watching most closely, how their underlying numbers will help him with his upcoming selections and which players he should ultimately choose: